MIAMI - Dwyane Wade's night began with a hug for his mom. It ended with an embrace from LeBron James.

And the Miami Heat have struck first in the NBA finals.

James scored 24 points for his first win in five finals-game appearances, Wade added 22 points and 10 rebounds and the Heat beat the Dallas Mavericks ,92-84, in Game 1 of the title series on Tuesday night.

The Heat trailed by eight points early in the third quarter before pulling away, remaining unbeaten at home in these playoffs and snapping Dallas' five-game road winning streak.

Chris Bosh scored 19 points - holding up three fingers when it was over, a clear nod to the three wins Miami needs for a title - and Mario Chalmers added 12 for the Heat, who host Game 2 on Thursday night.

"I just was aggressive," Wade said. "We understand that this is the kind of game we wanted to play. We had them where we wanted them in the sense of points. You know they wasn't scoring a lot on us and offensively we just executed and guys made plays."

Wade's 3-pointer with 3:06 left put the Heat up 82-73, then the largest lead of the game for either team. The Mavs shaved two points off it on the next possession when Dirk Nowitzki hit two free throws, but James gave the Heat their first double-digit lead of the finals a few seconds later.

He dribbled upcourt against Shawn Marion, crossed his dribble over and got clear for a dunk while being fouled. The free throw made it 85-75, and most in the sellout, white-clad crowd began standing in anticipation.

Even then, it wasn't over.

Nowitzki made two more free throws - he was 12 for 12 from the line for the game - with 1:36 left, cutting the Miami lead to six.

A momentary blip.

Wade grabbed a key defensive rebound, dribbled away from three Dallas pursuers and found Bosh for a dunk with 1:08 left that restored the 10-point lead. Another dunk by James came with 38.6 seconds left, sealing the outcome.

Game over, and the Heat fans knew it, breaking into their now-traditional tossing of their white seat covers.

Nowitzki scored 27 points and grabbed eight rebounds for Dallas, which got 16 points and 10 rebounds from Marion and 12 from Jason Terry - most of those coming in an early flurry. It was Dallas' fifth straight loss to Miami in finals games, dating to the Heat rally for the 2006 crown.

Dallas had 51 points after 26 minutes. The Mavericks scored 18 points in the next 18 minutes, 33 over the remainder of the game, as Miami's defense found another gear.

"That's kind of the way we've been winning games, of late," Wade said. "You've got stay with it. You can't get frustrated because the ball's not going in. There's other ways you can dominate the game and we was able to do that tonight. I thought we did a great job in the second half of rebounding the ball, limiting them to one shot as much as possible."

The Mavs have an uncanny run of dominance over the Heat - which, for whatever reason, only seems to apply in regular-season games.

Take away the 2006 NBA finals, and Dallas came into Game 1 having beaten Miami 14 straight times.

The only team that has lost to any team more times consecutively is Minnesota, which finished with the NBA's worst record this season. The Timberwolves have lost 16 straight to San Antonio and Portland, and 15 straight to the Los Angeles Lakers.